docs: 添加中文文档，新增前端和后端代码

- 新增 README_CN.md 中文文档 - 新增 frontend/ Vue 3 前端项目 - 新增 web/ FastAPI 后端项目 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
2026-01-08 22:31:06 +08:00
parent 4267bda227
commit 4c9a7d0978
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--- a/frontend/.gitattributes
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+* text=auto eol=lf